Image_Engine
Posts: 39
Joined: Mon Nov 06, 2017 6:23 pm

Printing Multi Part Models/Process In Same Space

Im wondering what will happen with this pic...will there be a collision?
If so, how can you get multi parts to work with each other?
These are reinforcement ribs so they need to be connected
Where can I find the detailed information about this?

Cheers
Mult 1.JPG
Mult 2.JPG
MarkusS3D
Posts: 17
Joined: Wed Dec 21, 2022 8:54 am

Re: Printing Multi Part Models/Process In Same Space

I think you are doing something completely wrong. Can you be more specific? Your questions are somehow confusing.

Regards
S3D-Jason
Posts: 1608
Joined: Sun May 31, 2015 6:01 am

Re: Printing Multi Part Models/Process In Same Space

S3D should already merge overlapping geometry during slicing. You can try it out by importing 2 cubes and then overlapping them on one corner. If you then click Prepare to Print, you will see that the perimeters route around the combined outline of both cubes and it doesn't create any collisions.
Image_Engine
Posts: 39
Joined: Mon Nov 06, 2017 6:23 pm

Re: Printing Multi Part Models/Process In Same Space

MarkusS3D wrote: Thu Jul 27, 2023 6:44 am I think you are doing something completely wrong. Can you be more specific? Your questions are somehow confusing.

Regards
Thanks for your reply but there isnt much to it and the picture I thought would describe it

2 components:
1 is a shell,
2nd is internal ribbing contained wholly within the shell
They need to print together using different process and manage the overlap

Here is a simple example I hope helps;
Could you confirm behaviour as it doesnt look right?

Source object which is split into 2 components
Overlap_Inventor.JPG
The blue is an outer shell with its unique process
The red is a proxy for reinforcement ribs using a different process
Overlap.JPG


Looks like a collisiion? @Js3d-Jason.? The outer perim is not taking the inner perim of the shell object into account
Overlap.factory
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Last edited by Image_Engine on Thu Jul 27, 2023 5:22 pm, edited 2 times in total.
S3D-Jason
Posts: 1608
Joined: Sun May 31, 2015 6:01 am

Re: Printing Multi Part Models/Process In Same Space

Those 2 STL files are completely overlapping with one another, so I don't think you'll be able to achieve what you want use those 3D models alone.

If you want to add reinforcement ribs to the outer cylinder, you would typically just union those parts within your CAD package and then export the combined shape.
Image_Engine
Posts: 39
Joined: Mon Nov 06, 2017 6:23 pm

Re: Printing Multi Part Models/Process In Same Space

S3D-Jason wrote: Mon Jul 31, 2023 9:55 am Those 2 STL files are completely overlapping with one another, so I don't think you'll be able to achieve what you want use those 3D models alone.

If you want to add reinforcement ribs to the outer cylinder, you would typically just union those parts within your CAD package and then export the combined shape.
Thats how I first started...but I was looking at other options ie markforge where their slicer is used like this and combines the objects.

Here is an example where I combined the geometries and left them open,, no matter what setting I use, it does not resolve the issue? I dont want it to heal and close non manifold portions, I simply want it to print the presented skins. This is common practice in industrial modelling...can it be this hard :-( ?
Shell+rib_01.JPG
Shell+rib_02.JPG
In prusa you just add composite components as 'sub part' to consistently assemble overlaps...like this
Shell+rib_03.JPG
S3D-Jason
Posts: 1608
Joined: Sun May 31, 2015 6:01 am

Re: Printing Multi Part Models/Process In Same Space

It does print the skins, but those skins intersect and cross through one another. I would recommend doing a union operation in your CAD package so that you have actual solids for printing. That's is usually more reliable than having open non-closed skins.
Image_Engine
Posts: 39
Joined: Mon Nov 06, 2017 6:23 pm

Re: Printing Multi Part Models/Process In Same Space

S3D-Jason wrote: Tue Aug 01, 2023 9:42 am It does print the skins, but those skins intersect and cross through one another. I would recommend doing a union operation in your CAD package so that you have actual solids for printing. That's is usually more reliable than having open non-closed skins.
Something is getting lost in the translation maybe
The image above is from prusa which is managing the overlaps correctly and Im now using that instead
The previous post to that actually confuses s3d and none of the settings re: non manifold solve the issue even when I import the model as one union as then I cant apply diff settings to each component...anyway no time for this :(

Its ok as I now have a solution with Prusa slicer and am working now and able to complete jobs.
I have not been given a working solution from S3d and as far as I can see, its not capable of solving intersecting parts.

Thanks

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